Start at the Gypsera car park and hike towards the grocery «Fontana». After the store, turn right and hike up through Hürleni and Lengmoos to the top of Aettenberg mountain. Go on to the mountain pasture Stoss followed by the downhill to Zollhaus.

Return back to Schwarzsee on the trail along the river or take the public bus.

*Possibility to take the TPF bus from Zollhaus back to Schwarzsee or to Fribourg. (-1h20 hiking)